Hey Anusha, Places to in India in this season are :- Ziro in Arunachal Pradesh Rann of kutch to visit Rann festival in Gujarat ... Udaipur in rajasthan Coorg in Karnataka Darjeeling in Sikkim Manali in Himachal Pradesh Almora or Rishikesh in uttarakhand Amritsar in Punjab Havelock slands in Andaman and Nicobar islands Pondicherry in Tamil Nadu Cochin and Kannur in Kerala ... Happy Travelling !!! In need of any itineraries of above places ... Do ask ....
You can go To Goa;I visited the goa in Dec 2015.The beaches are decorated like a bride.At that time;the famous Sunburn festival also get organized there.You can go to cruise for the parties.And away from the beaches is peaceful,clean,less crowded area i.e. South Goa.Hire A scooty and wander all tha goa with the help of google maps.In other options;you can go to Jaiselmar and Rann of Kutch. Or if u want to see the snowfall go to Shimla or Manali. If you have more than a week then 1)Delhi->Bikaner->Jaiselmar->Mt.abbu->Delhi 2)Delhi->Chandigarh->Shimla->Manali->Amritsar
3)Delhi->Chandigarh->Mandi(Himachal)->Parvati valley(Malana,Kasol,Kheerganga trek)->Manali->Delhi
You can go for South India, North India or in the deserts. In South India, you can opt for Goa or Coorg as these two places are really worth visiting this time of the year. But if you're want to experience snowfall go to Himachal or Uttrakhand like Dalhousie, Auli, Manali or Shimla. Or you could go to Gujarat to attend the Rann utsav. Happy travelling
South India Nd if you wanna go to northern part of India then choose dec nd jan for trip. But if you analyze this period you would came across so many things which will suggest you for south India. Especially for Goa, Madras nd many more